Shoe upper



FIG. 1 is a perspective view of a shoe upper showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left elevational view thereof; and,

FIG. 4 is a rear elevational view thereof.

The broken line showing of a shoe sole in the figures is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 